Lever thumbwheel



FIG. 1 is a perspective view of a lever thumbwheel, showing the firstembodiment of our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a perspective view of a second embodiment, showing our newdesign;

FIG. 9 is a left side view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a front view thereof; and,

FIG. 14 is a right side view thereof.

CLAIM The ornamental design for a lever thumbwheel, as shown anddescribed.